Myalarm V-LCD1 Manual de Instruções descarregar pdf (Página 36)

INSTALLATION

5-30

System 2 Installation / Programming Manual

Grounding Readers

The foil shield of the cable running to all Readers should only be connected to Terminal #1 of the System,

which must be an earth ground.

Bar Code Readers have an earth ground wire on the supplied cable. Attach this to the foil shield drain wire of

the multiconductor cable. (Refer to Figure 15).

Data Chip Readers mounted on a metal plate (4302-4305), Magnetic Stripe and Wiegand Readers do not need

to be grounded at the reader.

Proximity readers require the Shield to be attached to the Black wire at the Reader location through a .01 UF

capacitor. (Refer to Figure 20).

CAUTION: The section of shield which is exposed, after stripping the cable, must be insulated to

protect it from shorting out any components of the circuit board. Use a piece of heat shrink

tubing, a piece of cable jacket or electrical tape. (Refer to Figure 7). This is extremely

important when cables enter the cabinet under the circuit board.

The connection from the stripped end of the cable to earth ground (Terminal #1) should be

as short as possible. The longer the drain wire the less effective the shield.

Anti-Passback with Readers

The Anti-Passback feature requires two Readers to be used at each door (one inside the protected area and

one outside). The outside Reader is connected to port one and the inside Reader to port two. Users must first

enter using Reader #1 before they can exit using Reader #2.

Readers and Keypads on the same Port

A “Card Reader and Keypad” or a “Data Chip Reader and Keypad” can be wired to the same Port or Door.

This door can be programmed as a “or” Port or an “and” Port.

If the System 2 is programmed for Card or Keypad the Reader can be used to operate the door lock or the

Keypad can be used.

If the System 2 is programmed for Card and Keypad the card or data chip must be used at the reader and

that same card or data chips PIN number must be entered on the Keypad to operate the door lock.

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Myalarm V-LCD1 Manual de Instruções Página 36